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Ultraviolet Absorber UV-328 25973-55-1

Purity: ≥99% Melting Point:80-83℃ Loss on Drying: ≤0.5% Ash Content: ≤0.1% Light Transmittance 440nm≥97%;500nm≥98% Solution : It can dissolve in benzene, toluene, ethyl acetate and petroleum ether, sl
  • Product origin:

    China
  • Color:

    light yellow powder
  • Shipping port:

    Any port in China
  • Lead Time:

    Prompt delivery
  • Product Details

Product Information


Product name

2-(2H-benzotriazol-z-yl)-4,6-di-tert-pentylphenol

CAS No.

25973-55-1

Molecular Weight

351.49

Molecular Formula

C22H29N3O

Quality Standard

Purity: ≥99% Melting Point:80-83℃ Loss on Drying: ≤0.5% Ash Content: ≤0.1% Light Transmittance 440nm≥97%;500nm≥98% Solution : It can dissolve in benzene, toluene, ethyl acetate and petroleum ether, sl


Technical Parameter


Appearance: light yellow powder

Content: ≥99%

Melting Point:80-83℃

Loss on Drying: ≤0.5%

Ash Content: ≤0.1%

Light Transmittance 440nm≥97%;500nm≥98%

Solution : It can dissolve in benzene, toluene, ethyl acetate and petroleum ether, slightly dissolve in ethanol and methyl alcohol, can not dissolve in water.



Usage


It is a high performance Ultraviolet Absorber. Its maximum ultraviolet absorption peak is 345nm, its light stability is similar to UV-326 and UV-327, but this product has good dissolubility with the resins. Its heat volatility is low and its durability to washing is very good. It is mainly used in polyethylene, polypropylene, polystyrene, polyvinyl chlornamee, polyester, epoxy resin, ABS resin and cellulosic resin, etc., about 1% of general consumption. Has a fine light stability too in various kinds of coating.

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